Transcript for NYC Multi-Day Music Festival 'Electric Zoo' Shut Down After Two Deadly Overdoses

Tonight new concerns.The about president dangers of a drug being used across this country. This weekend it turned deadly. Reporter: In new york city the promoters shut down the electric zoo festival after the deaths of two young people. 23-year-old jeffrey russ and olivia row ton doe died after taking a drug known as molly. Got a bad batch. You don't usually hear about people dying off that kind of stuff. Reporter: It's supposed to be the purest form of mda, the main greed ent in ectasy. They believe it's not harmful or addictive and there wouldn't be adverse side affects. Reporter: A staple of waves at tech know clubs, it's increasingly popping up in pop culture. Madonna announcing this at a music festival last year. How many people in this crowd have seen molly? Reporter: Later saying she was referencing a friend's song. Molly is named checked in hits from artists like kanye west to miley cyrus &#9834; &#9834; Reporter: Nod to those two deaths four other concert goers were returned to the hospital after overdosing on molly. Two of them in dangerous condition tonight.

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Two Drug Related Deaths Force NYC Music Festival to Shut Down

Pure version of Ecstasy called "Molly" increasing in popularity, could have caused festival deaths.

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